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1 year ago

3+5=5+ 3•5=5•2+(-2)=0TRUE OR FALSE ? ( for all three of them )

Mathematics

1 answer:

Savatey [412]1 year ago

7 0

Take into account that commutative property is present for addition and multiplication operations, then, you have:

3+5=5+3 TRUE

3·5 = 5·3 TRUE

The inverse addition of a number consists in adding the same numbers but with opposite signs, then, you have:

2 + (-2) = 0 TRUE

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What do you call raising a base to the exponent 2

Maru [420]

Answer:

Squaring

Step-by-step explanation:

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3 years ago

Verna shipped three packages to chicago. If the packages weighed 12 1/2, 35 1/4, and 41 7/20 pounds, what was the total weight?

stiv31 [10]

Answer:

Step-by-step explanation:

1st package weighs $12\dfrac{1}{2}$ pounds;

2nd package weighs $35\dfrac{1}{4}$ pounds;

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First, add whole numbers:

$12+35+41=88$

Now add fractions:

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4 years ago

6+(w-10)=5 solve for w

andreyandreev [35.5K]

Answer:

w = 9

Step-by-step explanation:

9-10 = -1

6+-1 = 5.

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4 years ago

8 sets of 3 positive tiles.

kramer

Answer:

A & E

Step-by-step explanation:

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4 years ago

I NEED HELP!!!

oksano4ka [1.4K]

Answer:

x= -2, y = -3

Step-by-step explanation:

1. substitute x = 4+2y in the first equation: $\begin{bmatrix}2\left(4+2y\right)+y=-7\end{bmatrix}$

simplify it : $\begin{bmatrix}8+5y=-7\end{bmatrix}$

2. isolate y in 8 + 5y = -7 --> 5y = -7 - 8 -->

3. solve for y: 5y = -15 --> y = -15/5 --> y= -3

4. solve for x: x = 4 + 2y

x = 4 + 2(-3)

x = 4 + (-6)

x = -2

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3 years ago